/*=========================================================================
 Authors: Michael Kazhdan and Matthew Bolitho
 at Johns Hopkins University, 2006-10

 Copyright (c) 2006-10, Michael Kazhdan and Matthew Bolitho,
 Johns Hopkins University.
 All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

 Redistributions of source code must retain the above copyright notice,
 this list of conditions and the following disclaimer.
 Redistributions in binary form must reproduce the above copyright notice,
 this list of conditions and the following disclaimer in the documentation
 and/or other materials provided with the distribution.
 Neither the name of the Johns Hopkins University nor the names of its
 contributors may be used to endorse or promote products derived from this
 software without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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=========================================================================*/

#ifndef FUNCTION_DATA_INCLUDED
#define FUNCTION_DATA_INCLUDED

#include "PPolynomial.h"

template< int Degree, class Real >
class FunctionData
{
  int useDotRatios;
  int normalize;
public:
  const static int DOT_FLAG;
  const static int D_DOT_FLAG;
  const static int D2_DOT_FLAG;
  const static int VALUE_FLAG;
  const static int D_VALUE_FLAG;

  int                        depth, res, res2;
  Real *                     dotTable, *dDotTable, *d2DotTable;
  Real *                     valueTables, *dValueTables;
  PPolynomial< Degree >      baseFunction;
  PPolynomial< Degree - 1 >  dBaseFunction;
  PPolynomial< Degree + 1 > *baseFunctions;

  FunctionData(void);
  virtual ~FunctionData(void);

  virtual void   setDotTables(const int & flags);

  virtual void clearDotTables(const int & flags);

  virtual void   setValueTables(const int & flags, const double & smooth = 0);

  virtual void   setValueTables(const int & flags, const double & valueSmooth, const double & normalSmooth);

  virtual void clearValueTables(void);

  void set(const int & maxDepth, const PPolynomial< Degree > & F, const int & normalize, const int & useDotRatios = 1);

  Real   dotProduct(const double & center1, const double & width1, const double & center2, const double & width2) const;

  Real  dDotProduct(const double & center1, const double & width1, const double & center2, const double & width2) const;

  Real d2DotProduct(const double & center1, const double & width1, const double & center2, const double & width2) const;

  static inline int SymmetricIndex(const int & i1, const int & i2);

  static inline int SymmetricIndex(const int & i1, const int & i2, int & index);
};

#include "FunctionData.inl"
#endif // FUNCTION_DATA_INCLUDED
